Update git submodules

* Update docs/submodules/dmaap/messagerouter/messageservice.git from branch 'elalto'
  to ff3cde56d64143f7470b682f792a4187a34ac8df
  - updating the release notes for elalto maintenance release
    
    Change-Id: Ib392c6961a2d893d7d576522dd5008f582381a4e
    Signed-off-by: sawantmandar <ms5838@att.com>
    Issue-ID: DMAAP-1487
    
1 file changed